pin-pinning is the act of poking someone in the arm with a pin.
there is a vague history of pin-pinning, matt morgan was the first ever person to be pin-pinned from darren french who stood like a nobleman on someones stunt nuts.
dont pin pin its dangerous
if you insist then use a new needle every time.
if 'pin pin' is not said it is not a pin pinning but is an asault.

The act of jabbing a person with a sharp object, preferably a pin, and shouting the words 'Pin-Pin!'; preferably in a camp, middle-class accent. If 'Pin-Pin!' is not shouted then THIS DOES NOT COUNT as an act of Pin-Pinning! and should probably be considered assault with a deadly weapon.